Spectrum Sensing Methods in Cognitive Radio

Kumar, Sumit (2015) Spectrum Sensing Methods in Cognitive Radio. BTech thesis.



The electromagnetic spectrum is a characteristic asset. The present spectrum authorizing plan is not able to oblige quickly growing demand in wireless communication due to the static spectrum allocation strategies. This allocation prompts increment in spectrum scarcity issue. Cognitive radio (CR) technology is a propelled remote radio design which aims to expand spectrum utilization by distinguishing unused and under-used spectrum in rapidly evolving environments. Spectrum sensing is one of the key strategy for cognitive radio which detects the presence of primary client in authorized licensed frequency band utilizing dynamic spectrum assignment policies to utilize unused spectrum. In many areas cognitive radio frameworks coexist with other radio frameworks, utilizing the same spectrum yet without creating undue interference. The most simple and easy to implement sensing technique is energy detection. Since, it does not require any prior information of the signal present in the frequency band under observation. In this thesis, several spectrum sensing technique is introduced but the main work is carried for energy detection methods. Energy detection technique is implemented using VHDL for pseudo random sequence generator.

Item Type:Thesis (BTech)
Uncontrolled Keywords:Cognitive Radio, Spectrum Sensing, Spectrum Hole, Software Defined Radio
Subjects:Engineering and Technology > Electronics and Communication Engineering > Wireless Communications
Engineering and Technology > Electronics and Communication Engineering > VLSI
Divisions: Engineering and Technology > Department of Electronics and Communication Engineering
ID Code:7096
Deposited By:Mr. Sanat Kumar Behera
Deposited On:25 Feb 2016 13:49
Last Modified:25 Feb 2016 13:49
Supervisor(s):Deshmukh , S

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